20494300 has 72 divisors (see below), whose sum is σ = 47496960. Its totient is φ = 7660800.

The previous prime is 20494283. The next prime is 20494307. The reversal of 20494300 is 349402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20494307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107205 + ... + 107395.

It is an arithmetic number, because the mean of its divisors is an integer number (659680).

Almost surely, 2^20494300 is an apocalyptic number.

20494300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20494300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23748480).

20494300 is an abundant number, since it is smaller than the sum of its proper divisors (27002660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20494300 is a wasteful number, since it uses less digits than its factorization.

20494300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20494300 is about 4527.0630656089. The cubic root of 20494300 is about 273.6598154447.

The spelling of 20494300 in words is "twenty million, four hundred ninety-four thousand, three hundred".